Stove attachment.



W1'R. JEAVONS & A. R. WHITTAKER.

STOVE ATTACHMENT.

APPLIOATION. FILED Nov. 12. 1910.

T5 996,087. Patented .1111111211911 I @Mnz-nay nur WILLIAM R. JEAVONSAND ARNOLD R. WHITTAKER, 0F CLEVELAND, OHIO.

STOVE ATTACHMENT.

Specification of Letters Patent.

Patented d" une 27, 1911.

L'o all whom it may concern.'

Be it known that we, WVILLIAM R. JEAvoNs and ARNOLD R. lNHITTAKER,citizens of the United States, residing at Cleveland, in the county ofCuyahoga and State of Ohio, have invented a certain new and usefulImprovement in Stove Attachments, of which the following is a full,clear, and exact description, reference being had to the accompanyingdrawings.

This invention relates to attachments for oil and gas stoves for thepurpose of supporting and eiiiciently heating articles, such as irons.

The object of the invention is to provide an attachment of this kindwhich shall be extremely eiiicient in operation, conveying to thearticle to be heated a very high proportion of the heat units developedby the flame while at the same time equalizing the temperature over anextended lateral area as well as protecting the objects from the directaction of the llame.

A further object of the invention is to provide an attachment of thiskind which is adapted to fit and coperate with the grates with which oiland gas stoves are provided.

We accomplish these results by the construction illustrated in thedrawings forming part hereof, wherein Figure 1 represents a perspectiveview, with parts broken away, showing our attachment applied to a grate;Fig. 2 represents a bottom plan view of the attachment, and Fig. 3 adetail in section of the grate and attachment and a portion of the stovetop.

The attachment shown herein comprises generally an elevated plateconnected by spaced ribs with a peripheral ring located beneath saidplate, the ring being provided with a downturned flange at its outerperiphery, which flange is adapted to receive the ends of the ribs orbars of a standard grate.

Describing the various parts illustrated herein by reference characters,1 denotes the top of a stove of ordinary construction, said stove beingprovided with the usual opening for a grate and having an annulardepressed seat 2 around said opening for the reception of the outer ends3 of the radial bars of a grate 4. The grate is of usual constructionand comprises a plurality of rings 5 and 6, said rings serving tosupport the bars and add strength to the grate. The

upper surfaces. of the bars are in a higher plane than the stove top l,to permit the products of combustion to pass beneath the vesselsupported by the bars and outwardly above the stove top. The outer endsof the bars are provided each with a vertically extending shoulder 7 theshoulders being equidistant from the center of the grate. Our heatingattachment is supported on an ordinary grate of this kind. Thisattachment comprises a circular plate 8 having cast with and dependingfrom the under surface thereof a number of radial ribs. Some of theseribs, 9, extend nearly to the center of the plate 8; others, 9a, extendinwardly a shorter distance than the ribs 9; still other ribs, 9b,extend inwardly a shorter distance than the former ribs; and a series ofstill shorter ribs 9Lz is also shown, extending inwardly from theperipheral portion of the plate. The outer ends of the ribs have casttherewith a strengthening bar, shown as a ring l0, said ring beingcarried by the out-er ends of the ribs and having a bearing surface orledge l1 on its under side which is substantially flush, or in the sameplane, with the bottoms of said ribs. This ring is of less verticalextent than the ribs, whereby outwardly flaring passageways are formedbetween the ribs and between the plate 8 and the upper surface of thering l0. At its outer edge the ring 10 is provided with a vdownwardlyprojecting liange 12, the inner vertically extending surface of which isadapted to receive the vertically extending shoulders 7 at the ends ofthe grate ribs and lit more or less snugly thereon. By thisconstruction, the heating attachment is centered and supported in themost eilicient relation to the burner beneath the grate.

In operation, the products of combustion from the burner impinge againstthe lower surface of the plate 8 and against the ribs projectingdownwardly therefrom and then pass out through the radially flaringpassageways 13 provided between the ribs, the bottom of the plate 8 andthe upper 'periphery of the ring l0. The ribs greatly increase theheating surface on the under side of the plate 8, absorbing the heatfrom the products of combustion of the burners and conducting such heatto the plate. It has been found, by actual experiment, that the platewill be heated some forty per cent. higher with these ribs than if theyare omitted.

The construction described herein is sirn-V ple, economical ofproduction, but extremely efficient in operation.

Having thus described our invention, what we claim is:

l. An attachment for the purpose specified comprising a plate having aplurality of ribs depending from and cast with the lower surfacethereof, the outer ends of said ribs projecting beyond the periphery ofsaid plate and having a strengthening bar cast therewith, said barhaving a grate-engaging surface in the plane of the lower edges of theribs and being vertically spaced from said plate. l

2. An attachment for the purpose specified comprising a plate having aplurality of radial ribs depending from and cast with the lower surfacethereof, the outer ends of said ribs projecting beyond the periphery ofsaid plate and having a ring cast therewith, said ring having a.grate-engaging surface in the plane of the lower edges of the ribs andbeing vertically spaced from said plate.

3. An attachment for the purpose specified comprising a circular platehaving ribs cast with and depending from the under surface thereof, aring cast lwith the outer' ends of said ribs and vertically spaced fromsaid plate, the said ring having a bearing surface in the plane of thebottoms of the ribs and a depending annular flange located outside ofsaid surface,

4. An attachment for the purpose specified comprising a plate havingribs cast with and depending from the under surface thereof, astrengthening bar carried by the outer ends of said ribs and verticallyspaced from said plate,lthe said bar having a bearing surface in theplane of the bottoms of the ribs and a depending annular flange locatedoutside of said surface.

5. The combination, with a grate comprising a plurality of ribs, each ofsaid ribs having adjacent to its outer end a vertically eX- tendingshoulder, the shoulders being equi'- distant from the center of thegrate, of an attachment for said grate, said attachment comprising aplate having a plurality of ribs cast with and depending from its undersurface, and a ring carried by the outer ends of the last mentioned ribsand vertically spaced from the plate, said ring having a bearing insubstantially the same plane as the bottoms of the ribs by which it iscarried and a depending ledge located exteriorly of said surface, saidledge being adapted to engage the shoulders on the grate ribs and centerthe attachment on the grate.

6. The combination, with a gratecomprising a plurality of ribs, each ofsaid ribs having adjacent t-o its outer end a vertically eX- tendingshoulder, an attachment for said grate, said attachment comprising aplate having a plurality of ribs cast with and depending from its undersurface, and a strengthening bar carried by the outer ends of the lastmentioned ribs and vertically spaced from the plate, said bar having adepending ledge adapted to engage the shoulders on the grate ribs andcenter the attachment on the grate.

In testimony whereof, we hereunto affix our signatures in the presenceo-f two witnesses.

WILLIAM R. JEAVONS. ARNOLD R. YVHITTAKER. Vitnesses:

` EDWIN I-InINA,

EDWIN A. Donn.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner vof Patents,

Washington, D. C.

